What Is Guardianship in Washington?

Guardianship is a court process that lets one person make decisions for another who cannot make them safely on their own, whether that is a minor child without an available parent or an adult who has lost the ability to care for themselves. It is a powerful tool, and because it takes away rights, Washington law treats it as a last resort, reserved for situations where nothing less will protect the person. For Snohomish County families facing these decisions, understanding the basics helps you know when guardianship is the right answer and when it is not. For a focused explanation, read what Happens to a Guardianship When the Child Turns 18.

For related help, see Washington family-law guidance, a related guide, and another helpful resource.

What Is Guardianship in Washington?: At a Glance
Three practical points explained in this guide.
Key point 1
Washington's Modern Guardianship Law
Washington overhauled its guardianship system with the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act, chapter 11.130 RCW, which took effect January 1, 2022, and replaced the state's former guardianship statutes.
Key point 2
Guardian Versus Conservator
One of the most useful distinctions in the law is between a guardian and a conservator, because they cover different parts of a person's life.
Key point 3
Guardianship of an Adult
Guardianship requires clear and convincing proof of impaired decision-making, significant risk of harm, necessity, and the absence of a workable less restrictive alternative; the court may grant only the powers actually needed.
Use these checkpoints as an overview, then read the sections below for details that may apply to your situation.

Washington's Modern Guardianship Law

Washington overhauled its guardianship system with the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act, chapter 11.130 RCW, which took effect January 1, 2022, and replaced the state's former guardianship statutes. The new law reflects a clear philosophy: protect people who genuinely need help, but interfere with their rights and independence as little as possible. If the person receives SSI or Medicaid, consider how guardianship and conservatorship interact with benefit eligibility.

A key feature of the modern law is its emphasis on alternatives. The statute defines a less restrictive alternative as an approach that restricts fewer of a person's rights than a guardianship would, and it specifically includes things like supported decision-making, technological assistance, a representative payee for benefits, and powers of attorney for health care or finances. The court is directed to consider these first. Guardianship is meant to be the option of last resort, not the default.

Guardian Versus Conservator

One of the most useful distinctions in the law is between a guardian and a conservator, because they cover different parts of a person's life. Under RCW 11.130.010, a guardian is a person appointed by the court to make decisions about the personal affairs of an individual, which generally means decisions about where the person lives, their health care, and their daily personal needs. A conservator, by contrast, is appointed to make decisions about the property or financial affairs of an individual, managing money, paying bills, and protecting assets.

A person may need one or the other, or both. Someone who can manage their finances but cannot safely make medical and living decisions may need only a guardian. Someone whose main vulnerability is financial may need only a conservator. The court tailors the appointment to the actual need rather than handing over control of everything by default.

Guardianship of an Adult

Appointing a guardian for an adult is a serious step, and the law sets a high bar. Under RCW 11.130.265, a court may appoint a guardian for an adult only if it finds, by clear and convincing evidence, that three things are true. First, the adult lacks the ability to meet essential requirements for physical health, safety, or self-care because the adult is unable to receive and evaluate information or make or communicate decisions, even with appropriate supportive services, technological assistance, or supported decision-making. Second, the appointment is necessary to prevent significant risk of harm to the adult's physical health, safety, or self-care. Third, the adult's needs cannot be met by a less restrictive alternative.

Clear and convincing evidence is a demanding standard, considerably higher than the everyday "more likely than not." And the statute does not stop there. Under RCW 11.130.265, the court may grant the guardian only those powers necessitated by the person's demonstrated needs, must encourage the person's maximum self-determination and independence, and may not impose a full guardianship if a limited guardianship or a less restrictive arrangement would meet the need. The law is explicit that age, eccentricity, poverty, or a medical diagnosis alone are not enough to justify a guardianship. The question is always about actual, demonstrated incapacity and risk, not labels.

Guardianship of a Minor

Guardianship of a minor arises when a child needs someone other than a parent to step into a parental role. Under RCW 11.130.185, a court may appoint a guardian for a minor who does not already have one if it finds the appointment is in the minor's best interest and one of three conditions is met: each parent, after being fully informed, consents; all parental rights have been terminated; or there is clear and convincing evidence that no parent is willing or able to exercise parenting functions as defined in Washington's parenting statute.

This is the path used when, for example, a grandparent or other relative is raising a child whose parents cannot care for them. It is different from custody between two parents and different from adoption, which permanently severs and replaces the parent-child relationship. A minor guardianship gives the guardian authority to care for the child while the underlying parental situation is what it is, and it can be tailored and, in appropriate cases, ended when circumstances change.

A Note on Conservatorship Standards

For completeness, conservatorship of an adult carries its own protective standard. The court must find, by clear and convincing evidence, that the adult is unable to manage property or financial affairs, that a conservator is necessary to avoid harm or to provide for the person's needs, and that the need cannot be met by a less restrictive alternative. As with guardianship, the law favors the least intrusive solution that actually works.

When Guardianship Is, and Is Not, the Answer

Because guardianship removes significant rights, it is worth asking first whether a less restrictive tool would do the job. For many adults, a durable power of attorney for finances and a health care directive or health care power of attorney, put in place before any crisis, can avoid the need for guardianship entirely. Guardianship becomes necessary mainly when no such planning exists and the person can no longer protect themselves, or when a vulnerable person is at risk and informal arrangements are not enough.

These cases are emotionally difficult and legally demanding, and the right answer depends heavily on the specific facts. If you are wondering whether guardianship or a conservatorship is appropriate for a loved one in Snohomish County, or whether a less restrictive alternative would serve better, the Law Office of Chad Foster can help you understand the options under chapter 11.130 RCW and choose the path that truly fits your family's situation. Reach out to talk it through.

This article is general legal information about Washington law, not legal advice for your specific case.

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